Mechanical vibrator.



J. KOCH. MECHANICAL VIBRATOE.

APPLIOATION FILED JUNE 29, 1911.

Patented Jan. 2, 1912.

2 SHEETS-SHEET 1.

COLUMBIA PLANDGRAPH co WASHINGTON. h. c.

ZWww W J. KOCH.

MECHANICAL VIBRATOR. I APPLICATION FILED JUNE 29, 1911.

Patented Jan.2,1912.

2 SHEETS-SHEET 2.

avwewbof, qwi/lmwoeo e% 2 JP a I 0 COLUMBIA FLANOGRAPH (IO-,WASHINGTON,D. Cv

JOHN KOCH, OF NEW YORK, N. Y.

MECHANICAL VIBRATOR.

Specification of Letters Patent.

Patented Jan. 2, 1912.

Application filed June 29, 1911. Serial No. 635,949.

fl 0 all whom it may concern:

Be it known that I, JOHN Kooi-i, residing at New York, in the county ofNew York and State of New York, have invented certain new and usefulImprovements in Mechanical Vibrators; and I do declare the following tobe a full, clear, and exact description of the invention, such as willenable others skilled in the art to which it appertains to make and usethe same.

This invention relates to improvements in mechanical vibrators.

One object of the invention is to provide an improved construction ofvibrator adapted to be operated by hand, thus affording an eflicientexercise as well as producing beneficial vibrations which may beregulated at will.

With this and other objects in view, the invention consists of certainnovel features of construction, and the combination and arrangement ofparts as will be more fully described and particularly pointed out inthe claims.

In the accompanying drawings: Figure 1 is a view showing the manner ofusing my improved vibrator; Fig. 2 is a side view of one of thevibrato-rs; Figy3'is a central vertical section of the handle andoperating parts of the vibrator; Fig. 4 is a cross sectional view on theline 44 of Fig. 3; Fig.

5 is a plan view of the inner side of the revolving cam; Fig. 6 is aside view of a modifled form of the vibrator; Fig. 7 is a centralvertical sectional view of the same; Fig. 8 is a plan view with thecover plate removed; Fig. 9 is a horizontal section on the line 9-9 ofFig. 7

My improved vibrator comprises a tubular handle 1 formed of any suitablematerial. Arranged on one end of the handle is a cam plate 2 having aninwardly extending bearing sleeve 8 which projects into the bore of thehandle. In the opposite end of the handle is arranged a spring casingand bearing sleeve 4 on the outer end of which is formed an attachingplate 5. The plates 2 and 5 are securely fastened in place on the handleby long screws 6 which extend through the plate 2 and entirely throughthe handle and are screwed into thread passages in the plate 5. On theplate 2 are formed cam lugs 7 two of which are shown in the presentinstance said lugs being arranged at diametrically opposite points.

Revolubly mounted in the bearing sleeves 3 and 4 is a vibrating shaft 8the ends of which extend beyond the ends of the handle and are bent atsuitable angles to form cranks 8*. On the cranked ends of the shaft arefixedly secured suitable weights which are here shown and are preferablyin the form of balls 8*.

Secured to the shaft 8 adjacentto the cam plate 2 is a revolvingco-acting cam 9 comprising a sleeve 10 having a flanged inner end onwhich is formed a plurality of cam lugs 11, four of which are shown inthe present instance, said lugs being arranged at diametrically oppositepoints, as shown and are adapted to co-act with the cam lugs 7 fixed onthe plate 2. The sleeve 10 is secured in position on the shaft bytransversely disposed fastening pins 12 which are inserted through thesleeve and shaft as shown.

Arranged on the shaft and within the spring casing 4 is a coiled spring18 one end of which bears against the inner end of the casing 4 and theouter end is engaged with a stop collar 14 which is adjustably securedto the shaft 8 by a set screw 15 whereby the pressure of the spring isregulated, and a greater or less exertion required for revolving the cam9 over the cam plate 2 by the rotary or centrifugal movement of theballs 10 and shaft 8. By this means the device may be readily adaptedfor the use of persons of different strength.

In Figs. 6 to 9 of the drawing is shown a slightly modified form of theinvention comprising a hollow handle 16 in the lower end of which isformed a combined spring oasing and bearing sleeve 17 On the upper endof the handle is arranged a bearing plate or cap 18. In the handle asuitable distance below the cap 18 is arranged an annular flange 19which forms a fixed cam support and has arranged thereon oppositelydisposed stationary cam lugs 20. Revolubly mounted in the bearing sleeve17 and cap 18 is a vibrating shaft 21 having angular ends and weightsconstructed and arranged in the same manner as the shaft and weightsshown in Fig. 1. On the shaft 21 immediately above the annular flange 19and lugs 20 is fixed a revolving cam 9 having on its central portiondepending cam lugs 22 which are adapted to engage the lugs 20 and havingan annular stop flange 23 also adapted to engage the lugs 20 on theflange 19 of the handle as shown. The cam 9 is secured to the shaft 21by transverse pins 24: or other suitable fastening devices. In theflange 23 of the cam are formed oppositely disposed recesses 25 whichpermit the removal of the cam past the lugs 26 on the inner side of thehandle to which the cap or bearing plate 18 is secured. In the springcasing 17 and around the shaft 21 is arranged a coiled spring 27 one endof which bears against the inner end of the casing and the other endagainst a spring adjusting collar 28 which is secured to the shaft by aset screw and is adapted to be adjusted to regulate the pressure of thespring.

The vibrators may be used with one hand or one in each hand and in usingthe same the handles are grasped and with a revolving or centrifugalmovement the balls or weights are swung around thus revolving the shaft.In thus revolving the shaft the lugs on the cam fixed to the shaft playover the stationary cam lugs of the handle and thus cause a vibration ofthe shaft which is imparted to the hands, arms and other parts of thebody through the handle.

From the foregoing description taken in connection with the accompanyingdrawings, the construction and operation of the invention will bereadily understood without requiring a more extended explanation.

Various changes in the form, proportion and the minor details ofconstruction may be resorted to without departing from the principle orsacrificing any of the advantages of the invention claimed.

Having thus described my invention, What I claim is:

1. A vibrator comprising a handle, cam lugs secured thereto, a shaftrevolubly mounted in said handle, crank arms formed on the ends of saidshaft, weights arranged on the ends of said arms, a cam fixed to saidshaft, said cam having lugs adapted to play over the cam lugs on thehandle, and a spring adapted to yieldinglv resist the play of the camson said shaft over the fixed cam lugs on the handle.

2. A vibrator comprising a handle, cam lugs secured thereto, a shaftrevolubly mounted in said handle, crank arms formed on the ends of saidshaft, weights arranged on the ends of said arms, a cam fixed to saidshaft said cam having lugs adapted to play over the cam lugs on thehandle, a spring casing arranged in the lower end of said handle, aspring arranged in said casing and a collar adjustably secured to saidshaft and adapted to engage said spring whereby the pressure of the sameis regulated and the play of the cam on the shaft over the fixed camsthus yieldingly resisted.

A vibrator comprising a hollow handle, having formed in one end acombined bearing sleeve and spring casing, an annular cam supportingflange formed in said handle, cam lugs formed on said flange, a bearingcap secured to the upper end of the handle, a shaft revolubly mounted insaid bearing sleeve and cap, a cam fixed on said shaft in said handle,lugs on said cam adapted to engage the lugs on said flange, a springarranged on said shaft in said spring casing and a collar adjustablysecured to the shaft to regulate the tension of said spring.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

JOHN KOCH.

WVitnesses I'I. HUNFALVY, I. HALISGHKA.

Copies of this patent may be obtained for .five cents each, byaddressing the Commissioner of Patents,

Washington, D. C.

